Spring wheel



W. CHILDS July 15, 1924.

SPRING WHEEL Filed may 28 1923 Patented July 15, 1924.

-UNITED STATES PATENT OFFICE W'AI'JIILAGE CHILDS, OF KANSAS OI'IY,MISSOURI- srame wanna.

Application filed Kay 28, 1923. Serial No. 642,034.

7 To all'whom it may camera:

and use the same,

'I heobject of my invention is to provide a spring. wheel for a bug,wagon, truck, au-

.tomobile or similar ve icle, which will be strong, durable andpractical; free from the objections to other similar resilient wheelsand especially pneumatic tire wheels. a

- One object is to provide means to prevent lateral strainin of the periheral tread rim when the whee is subjecte to great straining whenturning corners quickly.

Another object is to construct a resilient:

spoke of two springs in combination and one of said springs acorrugatedspringi. corrugated spring may also beus'e sin ly as anauxiliary when deemed necessary or greater efiiciency in lateralbracing.

These and other objects of advantage will 7 be shown in detail byreferring to the speciin Fig. 1.

fieations and drawing as follows.

Fig. 1, is a view in elevation of my proved wheel. i Fig. 2, is an edgeview of the wheel shown ed cross-section-"of Fig.

Fig. 3, is an enlar 1, on line .1-1, but s owing the ball A, and

the spoke 9, in elevation.

Fig. 4, is a cross-section of Fig. 3, on line ,2 2 of Fig. 3.

Fig. 5, is a plan view showinglpart ofFig. 1, on line 33 of Fi 4, and 'te plate coupler or fastener for t e metal springs.

Fig. 1, shows an automobile or similar vehicle wheel embracing myinventiom in which 1, represents the hub; 9, the ordina rigid spokes' 12'the folly. 8 the folly s rigid inner ri m ;"f,.the movable inn, withits cushioned tread 2,-2; 22,1shows the plate coupler fastening for thecoilwire spring 10, and the metallic corru ated spring 11, with therubber bufier bal preferable, A, held therein, but the form of saidbutler it is apparent may bemade cylindrical if preferred, and thebuffer "of ang suitable material. I do not wish to be con ed to a rubberball,

. and a bufierjinay be dispensed with entirely to a This

' As many necessary to i spoke and the plate I making'of'both 10, and11, springs without one a corrugated spring'having a bu when thoughtbest. 5, and 6, are the bolts and nuts holding the tread 2, 2, in achanneled rim 7, preferably. 13, 14, are the flanges of plate 22, forclasping the corrugated spring 11, at each end; and 15, the

clutch for holding at each end the coil wire spring 10, which incombination compose Y the resilient spoke.

All parts of the wheel are made in the ordinar way known to mechanicalex arts and a detail description is not deeme required. Now, to put theparts of the wheel gether, place between the outer and movb e rim 7, andthe inner rim 8, the coupler plate 22, then insert the corrugated springend 11, under the coupler late flanges 13 and 14,-see. Fig. 5, then pacethe ball A,

in the middle of the corrugated metal ribbon spring 11, and hold itthere and bring the coil spring 10, down over both; then bolt thecoupler plate 22, at 16, and 18, to the rigid inner rim 8, then pass thecoil spring 10, near its end under the clutch 15, of the plate cou ler22, and tighten down the nut 20, on bolt 19; of course, the holes forthe bolts are first made through the rim and felly. in an desirablemechanical way preferably dr1lling;and the bolts put up through theirfelly and run to their bolt heads 17 and 21. The other end of theresilient spoke at plate 22, between 23 and 24, it is apparent is putinv place same as above described. There ma be as many resilient spokesas rigid spo es 9, or there ma'yebetwice as many ut preferably same numr as the rigid spokes. bolts 5, and 6, may be placed through. the treadbands 2, 2, as deemed hold the tread bands from moving longitudinally orreceiving too muc strain on the rubber bands at 5, and 6, alone. Thestrength and sizeof the parts will affect the efiiciency' of this novelconstructed bolt holes in their ends, cheap to manufacture and morereliable for. service.

Thecorr'ugated spring is more effective against lateral'movement of theresilient spoke than the coil spring alone. 7

.' WhatI claim is:

*1. In a spring wheel comprising a hub, a 'seriesf'of radially disposedspokes carried thereby, a felly carrie by said spokes, and a metallictire fastened to said felly, the combination therewith of two metalsrmlgas, er

has,

clamp i22, renders the tween its corrugations, inclosed in theconvolutions of a coil wire spring, two duplicate clamping plates, eachhaving a clutching groove and two clutching lugs and two bolt holes. twoends of said springs fastened to the clampingoplate and said innermetallic tire, and the other two ends of said springs fastened to aduplicate clamping plate and to a peripheral tire, and said clampingplates fastened to said tires by bolts and nuts, the springs arranged inpairs, serially and radially between the tires, to correspond with thespokes of the wheel hub, there being as many pairs of springs as hubspokes.

2. In a spring wheel comprisinga hub, and radially disposed spokescarried thereby, a felly carried by said spokes, a metallic tirefastened to said felly, to said metallic tire being fastened clampingplates, each having a clutching groove and clutching lugs, whichconnects the metal springs together and to the metallic tire; one ineach pair of springs being a corrugated spring, the other spring in eachpair of springs being a coil wire spring having inclosed Within itsconvolutions said corrugated spring, the other ends of said springsbeing attached in same way to duplicate clamping plates and to aperipheral tire and all fastened in same 80 manner, by nuts and bolts.

3. In a spring wheel, comprising a hub, spokes carried by said hub, afelly fastened to said spokes and a metal tire fastened to saidfelly:-the combination of a series of metal springs arranged in pairsaround said Wheel circumferentially, one spring of each pair of springsbeing a corrugated spring, the other a coil wire spring which inclosesby its convolutions the corrugated spring, to each of the ends of thesprings of each pair being connected a clamping plate, the clampingplates each have a clutching groove and clutching lugs and bolt holes,and being attached one at each end of the pairs of springs, and to theinner tire and to the peripheral tire, by bolts and nuts.

4. In a vehicle wheel such as specified and shown; a coil wire spring, acorrugated spring placed in the convolutions of said coil wire spring,one end of each pair of said springs fastened to the inner tire, and theother end of the pairs of said springs fastened to the outer orperipheral tire, and means to fasten said springs together and to eachof said tires substantially as and for the purposes specified and shown.

WALLACE CHILDS. Witnesses:

Gno. N. RoBER'rs, J OSEPHUS S. CARR.

